The writer made plenty of money through setting up and running a business. Having sufficient money means that there is no need to make anything from a book.

It has been fairly costly to print hard copies and hand out for free, plus web expenses and proofing all add up, but it has been a hobby of sorts.

The book has come about mainly by original thoughts of the writer, but there are considerable contributions, of sorts, by vast numbers of other people.
Through hundreds of hours of discussion and debate with so many and even if the opposite of what people said was taken on board, it seems wrong to
charge for this book.